1 #![allow(
2 clippy::assertions_on_constants,
3 clippy::cast_possible_truncation,
4 clippy::cast_possible_wrap,
5 clippy::float_cmp,
6 clippy::needless_pass_by_value,
7 clippy::unit_cmp,
8 clippy::unseparated_literal_suffix
9 )]
10
11 use cxx::SharedPtr;
12 use cxx_test_suite::module::ffi2;
13 use cxx_test_suite::{cast, ffi, R};
14 use std::cell::Cell;
15 use std::ffi::CStr;
16
17 thread_local! {
18 static CORRECT: Cell<bool> = Cell::new(false);
19 }
20
21 #[no_mangle]
cxx_test_suite_set_correct()22 extern "C" fn cxx_test_suite_set_correct() {
23 CORRECT.with(|correct| correct.set(true));
24 }
25
26 macro_rules! check {
27 ($run:expr) => {{
28 CORRECT.with(|correct| correct.set(false));
29 $run;
30 assert!(CORRECT.with(Cell::get), "{}", stringify!($run));
31 }};
32 }
33
34 #[test]
test_c_return()35 fn test_c_return() {
36 let shared = ffi::Shared { z: 2020 };
37 let ns_shared = ffi::AShared { z: 2020 };
38 let nested_ns_shared = ffi::ABShared { z: 2020 };
39
40 assert_eq!(2020, ffi::c_return_primitive());
41 assert_eq!(2020, ffi::c_return_shared().z);
42 assert_eq!(2020, ffi::c_return_box().0);
43 ffi::c_return_unique_ptr();
44 ffi2::c_return_ns_unique_ptr();
45 assert_eq!(2020, *ffi::c_return_ref(&shared));
46 assert_eq!(2020, *ffi::c_return_ns_ref(&ns_shared));
47 assert_eq!(2020, *ffi::c_return_nested_ns_ref(&nested_ns_shared));
48 assert_eq!("2020", ffi::c_return_str(&shared));
49 assert_eq!(
50 b"2020\0",
51 cast::c_char_to_unsigned(ffi::c_return_slice_char(&shared)),
52 );
53 assert_eq!("2020", ffi::c_return_rust_string());
54 assert_eq!("2020", ffi::c_return_unique_ptr_string().to_str().unwrap());
55 assert_eq!(4, ffi::c_return_unique_ptr_vector_u8().len());
56 assert_eq!(
57 200_u8,
58 ffi::c_return_unique_ptr_vector_u8().into_iter().sum(),
59 );
60 assert_eq!(
61 200.5_f64,
62 ffi::c_return_unique_ptr_vector_f64().into_iter().sum(),
63 );
64 assert_eq!(2, ffi::c_return_unique_ptr_vector_shared().len());
65 assert_eq!(
66 2021_usize,
67 ffi::c_return_unique_ptr_vector_shared()
68 .into_iter()
69 .map(|o| o.z)
70 .sum(),
71 );
72 assert_eq!(2020, ffi::c_return_identity(2020));
73 assert_eq!(2021, ffi::c_return_sum(2020, 1));
74 match ffi::c_return_enum(0) {
75 enm @ ffi::Enum::AVal => assert_eq!(0, enm.repr),
76 _ => assert!(false),
77 }
78 match ffi::c_return_enum(1) {
79 enm @ ffi::Enum::BVal => assert_eq!(2020, enm.repr),
80 _ => assert!(false),
81 }
82 match ffi::c_return_enum(2021) {
83 enm @ ffi::Enum::LastVal => assert_eq!(2021, enm.repr),
84 _ => assert!(false),
85 }
86 match ffi::c_return_ns_enum(0) {
87 enm @ ffi::AEnum::AAVal => assert_eq!(0, enm.repr),
88 _ => assert!(false),
89 }
90 match ffi::c_return_nested_ns_enum(0) {
91 enm @ ffi::ABEnum::ABAVal => assert_eq!(0, enm.repr),
92 _ => assert!(false),
93 }
94 }
95
96 #[test]
test_c_try_return()97 fn test_c_try_return() {
98 assert_eq!((), ffi::c_try_return_void().unwrap());
99 assert_eq!(2020, ffi::c_try_return_primitive().unwrap());
100 assert_eq!(
101 "logic error",
102 ffi::c_fail_return_primitive().unwrap_err().what(),
103 );
104 assert_eq!(2020, ffi::c_try_return_box().unwrap().0);
105 assert_eq!("2020", *ffi::c_try_return_ref(&"2020".to_owned()).unwrap());
106 assert_eq!("2020", ffi::c_try_return_str("2020").unwrap());
107 assert_eq!(b"2020", ffi::c_try_return_sliceu8(b"2020").unwrap());
108 assert_eq!("2020", ffi::c_try_return_rust_string().unwrap());
109 assert_eq!("2020", &*ffi::c_try_return_unique_ptr_string().unwrap());
110 }
111
112 #[test]
test_c_take()113 fn test_c_take() {
114 let unique_ptr = ffi::c_return_unique_ptr();
115 let unique_ptr_ns = ffi2::c_return_ns_unique_ptr();
116
117 check!(ffi::c_take_primitive(2020));
118 check!(ffi::c_take_shared(ffi::Shared { z: 2020 }));
119 check!(ffi::c_take_ns_shared(ffi::AShared { z: 2020 }));
120 check!(ffi::ns_c_take_ns_shared(ffi::AShared { z: 2020 }));
121 check!(ffi::c_take_nested_ns_shared(ffi::ABShared { z: 2020 }));
122 check!(ffi::c_take_box(Box::new(R(2020))));
123 check!(ffi::c_take_ref_c(&unique_ptr));
124 check!(ffi2::c_take_ref_ns_c(&unique_ptr_ns));
125 check!(cxx_test_suite::module::ffi::c_take_unique_ptr(unique_ptr));
126 check!(ffi::c_take_str("2020"));
127 check!(ffi::c_take_slice_char(cast::unsigned_to_c_char(b"2020")));
128 check!(ffi::c_take_slice_shared(&[
129 ffi::Shared { z: 2020 },
130 ffi::Shared { z: 2021 },
131 ]));
132 let shared_sort_slice = &mut [
133 ffi::Shared { z: 2 },
134 ffi::Shared { z: 0 },
135 ffi::Shared { z: 7 },
136 ffi::Shared { z: 4 },
137 ];
138 check!(ffi::c_take_slice_shared_sort(shared_sort_slice));
139 assert_eq!(shared_sort_slice[0].z, 0);
140 assert_eq!(shared_sort_slice[1].z, 2);
141 assert_eq!(shared_sort_slice[2].z, 4);
142 assert_eq!(shared_sort_slice[3].z, 7);
143 let r_sort_slice = &mut [R(2020), R(2050), R(2021)];
144 check!(ffi::c_take_slice_r(r_sort_slice));
145 check!(ffi::c_take_slice_r_sort(r_sort_slice));
146 assert_eq!(r_sort_slice[0].0, 2020);
147 assert_eq!(r_sort_slice[1].0, 2021);
148 assert_eq!(r_sort_slice[2].0, 2050);
149 check!(ffi::c_take_rust_string("2020".to_owned()));
150 check!(ffi::c_take_unique_ptr_string(
151 ffi::c_return_unique_ptr_string()
152 ));
153 let mut vector = ffi::c_return_unique_ptr_vector_u8();
154 assert_eq!(vector.pin_mut().pop(), Some(9));
155 check!(ffi::c_take_unique_ptr_vector_u8(vector));
156 let mut vector = ffi::c_return_unique_ptr_vector_f64();
157 vector.pin_mut().push(9.0);
158 check!(ffi::c_take_unique_ptr_vector_f64(vector));
159 let mut vector = ffi::c_return_unique_ptr_vector_shared();
160 vector.pin_mut().push(ffi::Shared { z: 9 });
161 check!(ffi::c_take_unique_ptr_vector_shared(vector));
162 check!(ffi::c_take_ref_vector(&ffi::c_return_unique_ptr_vector_u8()));
163 let test_vec = [86_u8, 75_u8, 30_u8, 9_u8].to_vec();
164 check!(ffi::c_take_rust_vec(test_vec.clone()));
165 check!(ffi::c_take_rust_vec_index(test_vec.clone()));
166 let shared_test_vec = vec![ffi::Shared { z: 1010 }, ffi::Shared { z: 1011 }];
167 check!(ffi::c_take_rust_vec_shared(shared_test_vec.clone()));
168 check!(ffi::c_take_rust_vec_shared_index(shared_test_vec.clone()));
169 check!(ffi::c_take_rust_vec_shared_push(shared_test_vec.clone()));
170 check!(ffi::c_take_rust_vec_shared_forward_iterator(
171 shared_test_vec,
172 ));
173 let shared_sort_vec = vec![
174 ffi::Shared { z: 2 },
175 ffi::Shared { z: 0 },
176 ffi::Shared { z: 7 },
177 ffi::Shared { z: 4 },
178 ];
179 check!(ffi::c_take_rust_vec_shared_sort(shared_sort_vec));
180 check!(ffi::c_take_ref_rust_vec(&test_vec));
181 check!(ffi::c_take_ref_rust_vec_index(&test_vec));
182 check!(ffi::c_take_ref_rust_vec_copy(&test_vec));
183 check!(ffi::c_take_ref_shared_string(&ffi::SharedString {
184 msg: "2020".to_owned()
185 }));
186 let ns_shared_test_vec = vec![ffi::AShared { z: 1010 }, ffi::AShared { z: 1011 }];
187 check!(ffi::c_take_rust_vec_ns_shared(ns_shared_test_vec));
188 let nested_ns_shared_test_vec = vec![ffi::ABShared { z: 1010 }, ffi::ABShared { z: 1011 }];
189 check!(ffi::c_take_rust_vec_nested_ns_shared(
190 nested_ns_shared_test_vec
191 ));
192
193 check!(ffi::c_take_enum(ffi::Enum::AVal));
194 check!(ffi::c_take_ns_enum(ffi::AEnum::AAVal));
195 check!(ffi::c_take_nested_ns_enum(ffi::ABEnum::ABAVal));
196 }
197
198 #[test]
test_c_callback()199 fn test_c_callback() {
200 fn callback(s: String) -> usize {
201 if s == "2020" {
202 cxx_test_suite_set_correct();
203 }
204 0
205 }
206
207 #[allow(clippy::ptr_arg)]
208 fn callback_ref(s: &String) {
209 if s == "2020" {
210 cxx_test_suite_set_correct();
211 }
212 }
213
214 fn callback_mut(s: &mut String) {
215 if s == "2020" {
216 cxx_test_suite_set_correct();
217 }
218 }
219
220 check!(ffi::c_take_callback(callback));
221 check!(ffi::c_take_callback_ref(callback_ref));
222 check!(ffi::c_take_callback_ref_lifetime(callback_ref));
223 check!(ffi::c_take_callback_mut(callback_mut));
224 }
225
226 #[test]
test_c_call_r()227 fn test_c_call_r() {
228 fn cxx_run_test() {
229 extern "C" {
230 fn cxx_run_test() -> *const i8;
231 }
232 let failure = unsafe { cxx_run_test() };
233 if !failure.is_null() {
234 let msg = unsafe { CStr::from_ptr(failure as *mut std::os::raw::c_char) };
235 eprintln!("{}", msg.to_string_lossy());
236 }
237 }
238 check!(cxx_run_test());
239 }
240
241 #[test]
test_c_method_calls()242 fn test_c_method_calls() {
243 let mut unique_ptr = ffi::c_return_unique_ptr();
244
245 let old_value = unique_ptr.get();
246 assert_eq!(2020, old_value);
247 assert_eq!(2021, unique_ptr.pin_mut().set(2021));
248 assert_eq!(2021, unique_ptr.get());
249 assert_eq!(2021, unique_ptr.get2());
250 assert_eq!(2021, *unique_ptr.getRef());
251 assert_eq!(2021, *unique_ptr.pin_mut().getMut());
252 assert_eq!(2022, unique_ptr.pin_mut().set_succeed(2022).unwrap());
253 assert!(unique_ptr.pin_mut().get_fail().is_err());
254 assert_eq!(2021, ffi::Shared { z: 0 }.c_method_on_shared());
255 assert_eq!(2022, *ffi::Shared { z: 2022 }.c_method_ref_on_shared());
256 assert_eq!(2023, *ffi::Shared { z: 2023 }.c_method_mut_on_shared());
257
258 let val = 42;
259 let mut array = ffi::Array { a: [0, 0, 0, 0] };
260 array.c_set_array(val);
261 assert_eq!(array.a.len() as i32 * val, array.r_get_array_sum());
262 }
263
264 #[test]
test_shared_ptr_weak_ptr()265 fn test_shared_ptr_weak_ptr() {
266 let shared_ptr = ffi::c_return_shared_ptr();
267 let weak_ptr = SharedPtr::downgrade(&shared_ptr);
268 assert_eq!(1, ffi::c_get_use_count(&weak_ptr));
269
270 assert!(!weak_ptr.upgrade().is_null());
271 assert_eq!(1, ffi::c_get_use_count(&weak_ptr));
272
273 drop(shared_ptr);
274 assert_eq!(0, ffi::c_get_use_count(&weak_ptr));
275 assert!(weak_ptr.upgrade().is_null());
276 }
277
278 #[test]
test_c_ns_method_calls()279 fn test_c_ns_method_calls() {
280 let unique_ptr = ffi2::ns_c_return_unique_ptr_ns();
281
282 let old_value = unique_ptr.get();
283 assert_eq!(1000, old_value);
284 }
285
286 #[test]
test_enum_representations()287 fn test_enum_representations() {
288 assert_eq!(0, ffi::Enum::AVal.repr);
289 assert_eq!(2020, ffi::Enum::BVal.repr);
290 assert_eq!(2021, ffi::Enum::LastVal.repr);
291 }
292
293 #[test]
test_debug()294 fn test_debug() {
295 assert_eq!("Shared { z: 1 }", format!("{:?}", ffi::Shared { z: 1 }));
296 assert_eq!("BVal", format!("{:?}", ffi::Enum::BVal));
297 assert_eq!("Enum(9)", format!("{:?}", ffi::Enum { repr: 9 }));
298 }
299
300 #[no_mangle]
cxx_test_suite_get_box() -> *mut R301 extern "C" fn cxx_test_suite_get_box() -> *mut R {
302 Box::into_raw(Box::new(R(2020usize)))
303 }
304
305 #[no_mangle]
cxx_test_suite_r_is_correct(r: *const R) -> bool306 unsafe extern "C" fn cxx_test_suite_r_is_correct(r: *const R) -> bool {
307 (*r).0 == 2020
308 }
309
310 #[test]
test_rust_name_attribute()311 fn test_rust_name_attribute() {
312 assert_eq!("2020", ffi::i32_overloaded_function(2020));
313 assert_eq!("2020", ffi::str_overloaded_function("2020"));
314 let unique_ptr = ffi::c_return_unique_ptr();
315 assert_eq!("2020", unique_ptr.i32_overloaded_method(2020));
316 assert_eq!("2020", unique_ptr.str_overloaded_method("2020"));
317 }
318
319 #[test]
test_extern_trivial()320 fn test_extern_trivial() {
321 let mut d = ffi2::c_return_trivial();
322 check!(ffi2::c_take_trivial_ref(&d));
323 check!(d.c_take_trivial_ref_method());
324 check!(d.c_take_trivial_mut_ref_method());
325 check!(ffi2::c_take_trivial(d));
326 let mut d = ffi2::c_return_trivial_ptr();
327 check!(d.c_take_trivial_ref_method());
328 check!(d.c_take_trivial_mut_ref_method());
329 check!(ffi2::c_take_trivial_ptr(d));
330 cxx::UniquePtr::new(ffi2::D { d: 42 });
331 let d = ffi2::ns_c_return_trivial();
332 check!(ffi2::ns_c_take_trivial(d));
333
334 let g = ffi2::c_return_trivial_ns();
335 check!(ffi2::c_take_trivial_ns_ref(&g));
336 check!(ffi2::c_take_trivial_ns(g));
337 let g = ffi2::c_return_trivial_ns_ptr();
338 check!(ffi2::c_take_trivial_ns_ptr(g));
339 cxx::UniquePtr::new(ffi2::G { g: 42 });
340 }
341
342 #[test]
test_extern_opaque()343 fn test_extern_opaque() {
344 let mut e = ffi2::c_return_opaque_ptr();
345 check!(ffi2::c_take_opaque_ref(e.as_ref().unwrap()));
346 check!(e.c_take_opaque_ref_method());
347 check!(e.pin_mut().c_take_opaque_mut_ref_method());
348 check!(ffi2::c_take_opaque_ptr(e));
349
350 let f = ffi2::c_return_ns_opaque_ptr();
351 check!(ffi2::c_take_opaque_ns_ref(f.as_ref().unwrap()));
352 check!(ffi2::c_take_opaque_ns_ptr(f));
353 }
354
355 #[test]
test_raw_ptr()356 fn test_raw_ptr() {
357 let c = ffi::c_return_mut_ptr(2023);
358 let mut c_unique = unsafe { cxx::UniquePtr::from_raw(c) };
359 assert_eq!(2023, c_unique.pin_mut().set_succeed(2023).unwrap());
360 // c will be dropped as it's now in a UniquePtr
361
362 let c2 = ffi::c_return_mut_ptr(2024);
363 assert_eq!(2024, unsafe { ffi::c_take_const_ptr(c2) });
364 assert_eq!(2024, unsafe { ffi::c_take_mut_ptr(c2) }); // deletes c2
365
366 let c3 = ffi::c_return_const_ptr(2025);
367 assert_eq!(2025, unsafe { ffi::c_take_const_ptr(c3) });
368 assert_eq!(2025, unsafe { ffi::c_take_mut_ptr(c3 as *mut ffi::C) }); // deletes c3
369 }
370